I am using the below code to assign the session value. But it's working with default value, while i assign the javascript variable means i got error.
  //Working 
  <%Session["UserSession"] = "hai"; %>
  var session_value='<%=Session["UserSession"]%>';
  alert(session_value);
 //Not Working 
  var value ="hai";
  <%Session["UserSession"] = value ; %>
  var session_value='<%=Session["UserSession"]%>';
  alert(session_value);
 
    